General Chat
Q:
When I bought my 72 the rear springs had 9 coils on the right side side and 8 coils on the left, the front has 10 coils on each side. the left rear spring clunks and rattles and the car sits crooked. I have a set of springs the PO gave me that one pair has 11 coils and says 90 and the other pair has 12 coils and says 130 , I'm thinking about replacing the mismatch in the back with the 11 coils 90 pair and leaving the front alone and hope it doesn't jack the back end way up but I don't know what the #90 and 130 means (if anything) so thats my question and can I buy standard Z struts with lowered springs or do I need special made, also the springs and aftermarket sway bars are both factory finish yellow, any idea who the manufacturer is?. ( no other identifying marks) Thanks in advance, Ken
A:
90 and 130 are probably pounds per inch spring constant
'73 240 Z had 83lbs/inch front (8.5 coils) and 104lbs/inch rear (10.65 coils).
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